Texas Instruments REG103-A Single Output LDO, 500mA, Adj.(1.295 to 5.5V), Low Noise, Fast Transient Response REG103FA-AKTTTG3

Single Output LDO, 500mA, Adj.(1.295 to 5.5V), Low Noise, Fast Transient Response 5-DDPAK/TO-263

Manufacturer: Texas Instruments
Win Source Part Number: 1242399-REG103FA-AKTTTG3
Packaging: Reel - TR
Operating Temperature Range: -40°C ~ 85°C
Package: TO-263-6, D2Pak (5 Leads + Tab), TO-263BA
Mounting: SMD
Number of Regulators: 1
Output Type: Adjustable
Control Features: Enable
Output Configuration: Positive
Output Current: 500mA
Family Name: REG103
Output Voltage: 1.295V
Categories: Integrated Circuits (ICs)
Operating Supply Current: 0.7mA ~ 1.3mA
PSRR: 65dB (120Hz)
Protection Features: Over Current, Over Temperature
Manufacturer Homepage: www.ti.com
Manufacturer Package: DDPAK/TO-263-5
Output Voltage MAX: 5.5V
Voltage Input MAX: 15V
Voltage Dropout (Maximum): 0.28V @ 500mA
Alternative Parts (Cross-Reference): SPX3819M5-L; TS1115CY RM; OM7581SCM;
Introduction Date: April 01, 2007
Estimated EOL Date: 2028
Popularity: Medium
Fake Threat In the Open Market: 29 pct.
Supply and Demand Status: Limited

500mA LDO, Adj 5.5V, 115mV Dropout, TO-263 Product overview: REG103FA-AKTTTG3 from Texas Instruments is a LDO Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include LDO, 500mA, 5.5V. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 500mA, 5.5V, LDO Voltage Regulator IC, Linear Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 699-REG103FA-AKTTTG3 can be used for catalog matching and distributor lookup.